scholarly journals Observing the silent world under COVID-19 with a comprehensive impact analysis based on human mobility

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Shaobin Wang ◽  
Yun Tong ◽  
Yupeng Fan ◽  
Haimeng Liu ◽  
Jun Wu ◽  
...  

AbstractSince spring 2020, the human world seems to be exceptionally silent due to mobility reduction caused by the COVID-19 pandemic. To better measure the real-time decline of human mobility and changes in socio-economic activities in a timely manner, we constructed a silent index (SI) based on Google’s mobility data. We systematically investigated the relations between SI, new COVID-19 cases, government policy, and the level of economic development. Results showed a drastic impact of the COVID-19 pandemic on increasing SI. The impact of COVID-19 on human mobility varied significantly by country and place. Bi-directional dynamic relationships between SI and the new COVID-19 cases were detected, with a lagging period of one to two weeks. The travel restriction and social policies could immediately affect SI in one week; however, could not effectively sustain in the long run. SI may reflect the disturbing impact of disasters or catastrophic events on the activities related to the global or national economy. Underdeveloped countries are more affected by the COVID-19 pandemic.

2021 ◽  
Author(s):  
Shaobin Wang ◽  
Yun Tong ◽  
Yupeng Fan ◽  
Haimeng Liu ◽  
Jun Wu ◽  
...  

Abstract Since spring 2020, the human world seems to be exceptionally silent due to mobility reduction caused by COVID-19 pandemic. To better measure real-time decline of human mobility and changes of socio-economic activities in a timely manner, we constructed a silent index (SI) based on Google’s mobility data. We systematically investigated the relations between SI, new COVID-19 cases, government policy, and the level of economic development. Results showed a drastic impact of the COVID-19 pandemic on increasing SI. The impact of COVID-19 on human mobility varied significantly by country and places. Bi-directional causality between SI and the new COVID-19 cases was detected, with a lagging period of one to two weeks. The travel restriction and social policies could immediately affect SI in one week; however, could not effectively sustain in the long run. Underdeveloped countries are more affected by the COVID-19 pandemic.


2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Prashant Kandari ◽  
Kusum Dobriyal ◽  
Uma Bahuguna

The major drive for financial inclusion started in the country mainly from year 2014 after the launch of Jan Dhan Yojana which focused mainly towards empowering dwellers of resource deprived and underdeveloped regions. Economic empowerment of such deprived sections is possible only when they are provided with ample opportunities for income generation in various economic activities. The prominent aim of financial inclusion is to facilitate residents of such deprived regions by reaching out to them and delivering them facilities so that they could identify and work on their capabilities to generate employment and income earning opportunities. The economically deprived and vulnerable population, through it, could be secured, from falling in the trap of poor informal level activities. These low-level informal activities are not suitable for them and for their overall development in the long run. Financial inclusion thus helps them in getting out of the poverty trap and hence acts as one of the important facility or an instrument which could help in a larger achievement of the goal of the development of residents of such deprived regions. Keeping these aspects in consideration the present study aims to understand the impact of financial inclusion on two important variables i.e. income generation and enhancement of savings among the residents of Mountain regions of the state which also represents the deprived and underdeveloped regions. The study was conducted in three mountain districts of the state and the results of the study shows that financial inclusion has helped in income generation in these regions but the impact of it has been different among different caste categories. Further the study shows that financial inclusion worked to enhance the income generation with larger benefits to households having higher levels of income. The study also depicts the positive impact of financial inclusion on savings but with noticeable variations in its impact on different caste groups.


2019 ◽  
Vol 23 (4) ◽  
pp. 432-441
Author(s):  
Bilal Ahmad Pandow ◽  
Khurshid Ahmad Butt

This article empirically examines the impact of stock splits on the price movements and returns of the scrips listed on the stock market in India. The study makes use of the standard event study methodology to measure the significance of unusual yield associated with the event. To calculate the returns, the study employs market model. Also, it uses parametric tests, such as t-statistic, and non-parametric test, such as Corrado Rank Test, Generalized Rank Test and Sign Test, to check the significance and robustness of abnormal return (AR), average AR, and cumulative average AR. Indisputably, the results are somewhat different from the evidences found in developed markets. Mostly in these countries, the event witnesses unusual optimistic yields. The results suggest that there is a positive AR adjacent to the effective day (ED) of the event in the short run. However, in the long run, negative ARs in the post-effective to ED+90 days window is witnessed. Further, the analysis also suggests that share splits do not have a positive influence on the share capital of the investors. The results are based on the 10-days event and 90-days estimation window and are the main limitation of the study. Hence, the windows can be both expanded and reduced to have a better holistic impact analysis of the share splits and stock returns of the selected firms.


Author(s):  
Moritz U.G. Kraemer ◽  
Chia-Hung Yang ◽  
Bernardo Gutierrez ◽  
Chieh-Hsi Wu ◽  
Brennan Klein ◽  
...  

AbstractThe ongoing COVID-19 outbreak has expanded rapidly throughout China. Major behavioral, clinical, and state interventions are underway currently to mitigate the epidemic and prevent the persistence of the virus in human populations in China and worldwide. It remains unclear how these unprecedented interventions, including travel restrictions, have affected COVID-19 spread in China. We use real-time mobility data from Wuhan and detailed case data including travel history to elucidate the role of case importation on transmission in cities across China and ascertain the impact of control measures. Early on, the spatial distribution of COVID-19 cases in China was well explained by human mobility data. Following the implementation of control measures, this correlation dropped and growth rates became negative in most locations, although shifts in the demographics of reported cases are still indicative of local chains of transmission outside Wuhan. This study shows that the drastic control measures implemented in China have substantially mitigated the spread of COVID-19.


2020 ◽  
Author(s):  
Nishant Kishore ◽  
Rebecca Kahn ◽  
Pamela P. Martinez ◽  
Pablo M. De Salazar ◽  
Ayesha S. Mahmud ◽  
...  

ABSTRACTIn response to the SARS-CoV-2 pandemic, unprecedented policies of travel restrictions and stay-at-home orders were enacted around the world. Ultimately, the public’s response to announcements of lockdowns - defined here as restrictions on both local movement or long distance travel - will determine how effective these kinds of interventions are. Here, we measure the impact of the announcement and implementation of lockdowns on human mobility patterns by analyzing aggregated mobility data from mobile phones. We find that following the announcement of lockdowns, both local and long distance movement increased. To examine how these behavioral responses to lockdown policies may contribute to epidemic spread, we developed a simple agent-based spatial model. We find that travel surges following announcements of lockdowns can increase seeding of the epidemic in rural areas, undermining the goal of the lockdown of preventing disease spread. Appropriate messaging surrounding the announcement of lockdowns and measures to decrease unnecessary travel are important for preventing these unintended consequences of lockdowns.


2021 ◽  
Author(s):  
Fabio Vanni ◽  
David Lambert ◽  
Luigi Palatella ◽  
Paolo Grigolini

Abstract The CoViD-19 pandemic ceased to be describable by a susceptible-infected-recovered (SIR) model when lockdowns were enforced. We introduce a theoretical framework to explain and predict changes in the reproduction number of SARS-CoV-2 (Sudden Acute Respiratory Syndrome Coronavirus 2) in terms of individual mobility and interpersonal proximity (alongside other epidemiological and environmental variables) during and after the lockdown period. We use an infection-age structured model described by a renewal equation. The model predicts the evolution of the reproduction number up to a week ahead of well-established estimates used in the literature. We show how lockdown policies, via reduction of proximity and mobility, reduce the impact of CoViD-19 and mitigate the risk of disease resurgence. We validate our theoretical framework using data from Google, Voxel51, Unacast, The CoViD-19 Mobility Data Network, and Analisi Distribuzione Aiuti.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Fabio Vanni ◽  
David Lambert ◽  
Luigi Palatella ◽  
Paolo Grigolini

AbstractThe reproduction number of an infectious disease, such as CoViD-19, can be described through a modified version of the susceptible-infected-recovered (SIR) model with time-dependent contact rate, where mobility data are used as proxy of average movement trends and interpersonal distances. We introduce a theoretical framework to explain and predict changes in the reproduction number of SARS-CoV-2 in terms of aggregated individual mobility and interpersonal proximity (alongside other epidemiological and environmental variables) during and after the lockdown period. We use an infection-age structured model described by a renewal equation. The model predicts the evolution of the reproduction number up to a week ahead of well-established estimates used in the literature. We show how lockdown policies, via reduction of proximity and mobility, reduce the impact of CoViD-19 and mitigate the risk of disease resurgence. We validate our theoretical framework using data from Google, Voxel51, Unacast, The CoViD-19 Mobility Data Network, and Analisi Distribuzione Aiuti.


Author(s):  
Dušana Alshatti Schmidt ◽  

The novel coronavirus (COVID-19) outbreak has already left a mark on the economic activities and labor markets in both advanced and developing countries. While the impacts on the economy vary considerably, the oil dependent economies have been hit harder. Along with the impact of the pandemic disease, they have been contending with a major collapse in oil prices. Kuwait is the world’s seventh largest exporter of oil. Falling oil demand might affect the future growth of Kuwait’s economy in the long run, and if the crisis continues, possibility to provide employment opportunities will be challenged. The aim of this paper is to analyze potential pandemic’s impact on employment in Kuwait in comparison with the financial crisis from 2008-2009, what is of crucial importance for the businesses in the region to understand. The paper is based on a systematic review of the secondary data gathered by international institutions.


2020 ◽  
Vol 101 (3) ◽  
pp. 1901-1919 ◽  
Author(s):  
Stefano Maria Iacus ◽  
Carlos Santamaria ◽  
Francesco Sermi ◽  
Spyros Spyratos ◽  
Dario Tarchi ◽  
...  

Abstract Countries in Europe took different mobility containment measures to curb the spread of COVID-19. The European Commission asked mobile network operators to share on a voluntarily basis anonymised and aggregate mobile data to improve the quality of modelling and forecasting for the pandemic at EU level. In fact, mobility data at EU scale can help understand the dynamics of the pandemic and possibly limit the impact of future waves. Still, since a reliable and consistent method to measure the evolution of contagion at international level is missing, a systematic analysis of the relationship between human mobility and virus spread has never been conducted. A notable exceptions are France and Italy, for which data on excess deaths, an indirect indicator which is generally considered to be less affected by national and regional assumptions, are available at department and municipality level, respectively. Using this information together with anonymised and aggregated mobile data, this study shows that mobility alone can explain up to 92% of the initial spread in these two EU countries, while it has a slow decay effect after lockdown measures, meaning that mobility restrictions seem to have effectively contribute to save lives. It also emerges that internal mobility is more important than mobility across provinces and that the typical lagged positive effect of reduced human mobility on reducing excess deaths is around 14–20 days. An analogous analysis relative to Spain, for which an IgG SARS-Cov-2 antibody screening study at province level is used instead of excess deaths statistics, confirms the findings. The same approach adopted in this study can be easily extended to other European countries, as soon as reliable data on the spreading of the virus at a suitable level of granularity will be available. Looking at past data, relative to the initial phase of the outbreak in EU Member States, this study shows in which extent the spreading of the virus and human mobility are connected. The findings will support policymakers in formulating the best data-driven approaches for coming out of confinement and mostly in building future scenarios in case of new outbreaks.


Author(s):  
E.V. Kutyashova ◽  
O.E. Danilin

The article is devoted to the peculiarities of the economic development of oil-producing countries, the impact of tourism on the economy of energy exporting countries and the formation of gross domestic product. The high dependence of oil-producing countries on the export of raw materials, fluctuations in the world oil market and awareness of the limited resources require a policy of diversification of national economies. Overcoming the dependence of the economy on a narrow range of economic activities, countries choose rapidly developing economic sectors that provide investment inflows, high export earnings and job creation. One such sector is tourism and travel. Within the framework of the study, countries with a high degree of dependence on energy exports were identified and grouped according to the level of economic development. To identify the role of tourism in the formation of the gross domestic product and the development of oil-producing countries, the average growth rates of the gross domestic product, the contribution of tourism to GDP, and investment in tourism were calculated for the period from 2010 to 2019. The countries that have chosen tourism as the direction of economic diversification are highlighted. An assessment of the impact of tourism on the rates of development of national economies of oil-producing countries is given.


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